Flush-valve mechanism.



J. H. DAVIS.

FLUSH VALVE MECHANISM.

APPLICATION FILED JULY 19. 1909.

Patented Sept. 20, 1910.

Inventor Attorney i UNITED STATES PATENT OFFICE.

JOHN H. DAVIS, 01 HAMILTON, OHIO.

FLUSH-VALVE MECHANIS MJ Specification of Letters Patent. Patented Sept, 20, 191(), Application filed July 19, 1909. Serial No. 508,426.

To all whom it may concern:

Be it known that I, JOHN H. DAVIS, a citizen of the United States, residing at Hamilton, Butler count Ohio, have invented certain new am useful Improve ments in Flush-Valve Mechanism, of which the following is a specification.

This invention, pertaining to flush valve mechanism will be readily understood from the followin description taken in connection with the accompanying drawing in which Figure l is a side elevation, part vertical section, of a flush valve mechanism exemplifying my invention: Fig. 2 a rear elevation of the same: and Fig. 3 a front elevation of the mechanism.

In the drawing:-1, indicates the wall of a flush tank-: 2, an opening through the same: 3, a bushing inserted in the opening in the wall and having a head exterior to the tank wall: 4, a plate screwed upon the inner end of the machine and serving to clam the tank wall tightly between the plate an the head of the opening: 5, a vertical guide-rod disposed in the tank, in the general vertical plane of the bushing, this guide-rod to have its lower endsecured in the base structure of the flush valve in a known manner: 6, an arm projecting rearwardly and rigidly from plate 4 and having the upper end of the guide-rod firmly secured to it: 7, a spindle journaled in the bushing: 8, a handle on the upper end of the spindle: 9, an arm firmly secured to the inner end of the spindle: 10, a stop projecting rearwardly from plate 4, in the path of arm 9, and serving to limit the downward movement of arm 9, arm 6 serving in the present case as a-stop to limit the upward motion of arm 9. 11, the usual tubular stem of the flush-valve, this stem having its u per end contracted and fitted to slide on gui e-rod 5: and 12, a link connecting arm 9 with the stem of the flush-valve.

The flush-valve stem 10 is illustrated as of the not unusual type in which ports at its upper end fitthe stem for duty as an overflow valve. By rocking handle 8 downwardly arm 9 is raised and with it the stem of the flush-valve, in an obvious manner. Arm 6 projecting from the plate furnishes a secure top anchorage for the guide-rod withoutthe necessity for providing a special proliection inwardly from the wall of the tan In the case of metallic tanks it is not easy to provide such special anchorage for in the tank wall becomes of avail in securing the moving parts of the valve-operating mechanism in position and at the same time rovides the anchorage for the valve rod.

urthermore, the valve-rod cooperates with the plate, through the medium of arm 6, in preventing undesired rotation of the plate while the bushing is being screwed into it, and,even if the clamping should become a trifle loosened, it still remains impossible for the plate to become angular-1y disposed. In the particular construction illustrated, arm 9 is secured to the inner end of the spindle by being fitted to a square on the inner end of the spindle and held thereto by a nut. In the present case, by reason of the presence of inwardly projecting arm 6, no special upstop need'be provided for arm 9.

The improved construction, when fully availed of, provides for the simple connection of a flush valve mechanism with the wall of a tank, regardless of whether that tank be of wood or of metal, a single hole of comparatively small size being all that is required in the wall; it provides for a substantial anchorage for the up or end of a guide-rod, thus adequately ta ting care of any sidestrain upon the valve stem which is actuated by the mechanism; and it provides for any desired degree of leverage from the handle, whereby flush valves more or less diflicultto lift may be readily operated by children.

I claim 1. Flush valve mechanism comprising, a tank wall provided with an aperture, a bushing disposed in said aperture, means for securing the bushing rigidly in the aperture, a

s indlejournaled in the bushing, a handle on t e outer end of the s indle, an arm on the inner end of the spind e adapted for connection with a flush valve part to be lifted, a plate screwed upon the inner end of the bushmg, a sto carried by said plate and serving to limit t e angular motion of said arm, and an arm projecting inwardly from said plate and adapted to serve as an anchorage for the top of a guide-rod, combined substantially-as set forth.

2. Flush valve mechanism comprising, in

combination with a tank wall provided with p an opening, a bushing dispos mg, means an opening, a bushin disposed in the opening, means for rigid y securing said bushing in place, a spindle journaled in the the outer end of the bushing, 'a handle on spindle, an arm on the innerend of the spindle adapted for connection with the movable part of the flush valve, a late secured on the inner end of the bus ling on the inside of the tank, and provided with an arm projecting inwardly and adapted to serve as an anchorage for the upper end of the'guide-rod of the flush valve.

, an anchora e arm on the inner end of the spindle adapted for connection with the movable part of the flush valve, a plate secured on the inner end of thebushin on the inside of the tank, and provided with an arm projecting inwardl and adapted to serve as or the upper end of the uide-rod o the flush valve, said arm adaptgd to limit the upward movement of the arm on the inner end of the spindle, and f a stop also carried by the plate and adapted to limit the downward movement of the valve operating arm.

JOHN H. DAVIS.

Witnesses JULIAN G. SMITH, E. M. Bnown; 

